Aeris, after being brought back via a cheat device, has dialogue in discs 2 and 3. This seems to imply that either Spoiler:she was not meant to die at the end of disc 1[/urli] or that [spoiler]she was intended to be revived later in the game.

After you find Cloud in the hospital after he falls in the Lifestream, he will mumble incoherent things when you speak to him. One of the things he mumbles is "zeno... gias..." This is a translation error and a reference to the game Xenogears. In the PC port of Final Fantasy VII, the spelling is corrected to "Xeno... gears".

Cloud also says "A billion mirror fragments.... small.... light..." which is a reference to the vocal song of Xenogears, Small Two of Pieces. One of the lines to the song is "Broken mirror, a million shades of light".

According to the Final Fantasy VII Ultimania Omega, earlier drafts of the game's scenario involved three characters known as the '3 Saints'. Not much is known about their original role in the story, other than they were kidnapped by Sephiroth, and that Red XIII knew more about them than the rest of your party. The only Saint mentioned by name was called Gandalf, who was captured by Hojo and "practically crippled" in a Shinra laboratory.

While at the Honeybee Inn, if you look into one of the occupied rooms through a key-hole, you can see a mini Cait Sith inside a bath tub jumping around.

Red XIII had a subplot that was cut from the game as the plot developed in a different direction. Originally there were to be two Red XIII clones created by Hojo called Cobalt XIV and Indigo XV. The player would have to fight all three of the "Red XIIIs" and figure out which was the real one, with the three swapping places periodically. Defeating the real Red XIII by accident meant the player had to fight the following boss battle with Hojo with only two party members. Cobalt and Indigo would return in the final dungeon of the game, turned into cyborgs and determined to prove they were superior to the real Red XIII.

There is a hidden "Red Man" in the Corel Prison. The model is hidden from view in normal gameplay. There are no other models like this in the game, and it is thought to be a signature from one of the designers.

During the scene where Sister Ray is about to fire the Diamond Weapon, there is a voice that comes through the intercom. The voice actor is not credited in the credits, and the person who spoke through it is unknown.

Although a voice was heard, and ultimately makes Final Fantasy VII the first Final Fantasy game with a voice actor.

During development, series creator Hironobu Sakaguchi's mother passed away. At the time, Sakaguchi wanted to craft a story that would show just because somebody has passed on, it doesn't mean that they are forever lost. He also wanted to present a realistic death, rather than a Hollywood sacrificial end. These two desires resulted in the concept of the Lifestream and Aeris' iconic death. The characters continuing to go on, attempting to save the world, after Aeris' death is a reflection of his own feelings coping with his mother's tragic death.

Many people still don't know how Cloud's legendary "Buster Sword" sticks to his back, but if you look at his initial design, it shows there is a magnet held by his pant straps that keeps his sword in place.

Cloud's hair was originally supposed to be black and slicked back to contrast with Sephiroth's long white hair. The developers also thought it would be a good way to render less polygons on screen. The idea was eventually ditched for his iconic spiky hair. The idea was later used for Angeal, the original wielder of the Buster Sword and Sephiroph's close friend in Crisis Core.

There are large quantities of cut content from the soapland 'Honey Bee Inn'. The content is as follows:

Whilst in the club, Cloud could end up in a bathtub with nine muscular men, peep through keyholes of occupied rooms, have makeup applied, and choose a room to stay in. You could have also encountered Palmer, head of the Shinra company's space program, coming from one of his regular "bath sessions". There was also a waiting room and employee's louge which players could visit and interact with NPCs.

Whilst some of this content was ultimately cut from the game, the unfinished content can be found on the discs of the original Japanese release and can be accessed through file hacks.

The inscription on Jenova's helmet is a reference to the real world, and read:
Made in Hong Kong
All rights reserved 1996
Squer Company Limited

It wasn't until 2005 (When a high-res image emerged) that this was found, 8 years after the game was released.

In the Ghost Square section of the Gold Saucer there is a pumpkin with green eyes in the corner of the room to the left of reception at the inn. Interacting with this pumpkin will cause it to laugh. This laugh is in fact a slightly slower version of the iconic laugh of Kefka Palazzo, the villain from Final Fantasy VI.